This is the first volume in a suite of short, inexpensive, paperbound volumes intended for student usage as textbooks, or course supplements, and for purchase as single-copy reference works for professionals in specific disciplines, and, in some cases, for interdisciplinary use. This title focuses on cellular automata simulations while using Mathematica, thus its audience is a generally broad one, although physicists, life scientists and engineers will find this title to be of particular interest. Those familiar with Gaylord's previous book, coauthored with Paul Wellin, "e;Computer Simulations with Mathematica - Explorations in Complex Biological and Physical Systems"e;, also published by TELOS, will find this new title to be an in-depth extension of some topics dealt with in that book. Modeling Nature: Cellular Automata Simulations with Mathematica, however, contains simulations not found in the Gaylord-Wellin volume. This book will have a DOS-diskette packaged with it, enabling cross-platform access to the code. These data files will also be made accessible online via the Internet at telospub.com FTP and WWW sites.